JSONZero On this device · No uploads · No limits

Convert

Turn JSON into YAML, XML, TOML, CSV, Excel, Python, query strings or source code.

Text stays in this browser. Nothing is uploaded.

About, how to use, and questions

What you can do

  • Twenty-two languages, each loaded on demand
  • Preview the result before copying or downloading
  • A failed conversion says where it gave up

How to use it

  1. Open a JSON file, or paste text into the editor. Nothing leaves this device.
  2. Format, validate, or work in the tree. The source and the tree follow each other.
  3. Copy or download the result, or send it on to another tool. The same file stays open.

Questions

Is my JSON uploaded anywhere?

JSONZero reads, formats and converts the text in your browser. Drafts stay in local storage on this device.

Is there a size limit?

There is no account and no quota. Very large files are limited only by the memory of this browser.

What happens to very large integers?

Integers past 2^53 - 1 are kept exactly as written and marked in the interface, instead of being silently rounded.